Nozzles,
Do calm down dear!
Richthofen was famously not much of a pilot (endless crack-ups on landing, endless near accidents), but he was a great tactician, a good leader and a fantastic shot. There's no doubt that he was a successful fighter pilot (the top scorer of the Great War), but that's not necessarily the mark of being a great pilot. The thread was about a chap being the 'greatest British (post WW2) military pilot'. Not about being the greatest air-to-air combat ace.
Hartman was, of course, military (doh typo sorry). But he did have to walk home 5 times and, like Richthofen, was not a great natural pilot, whereas Barkhorn had superb hands and later took to the F-86 (and the -104, if memory serves) like a duck to water.
That's all I meant.